Air conditioner



FIG. 1 is a front, top and right side perspective view of an air conditioner, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof, a left side elevational view is a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a reference enlarged vertical cross-sectional view thereof; taken along line 7-7 of FIG. 2, with the internal system omitted.

The broken lines in all views are shown for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for an air conditioner, as shown and described. 